The reason why uremic diets need to maintain adequate caloric intake is that daily intake of calories from the diet is used to maintain our body's metabolism and consumption of various activities.
When intake is less than consumption, the body uses its own energy reserves, and even consumes its own tissues to meet life activities. Uremia diet long-term intake of insufficient, accompanied by protein malnutrition, leading to loss of weight, edema, vitality, death.
Obesity is a risk factor for diabetes, hypertension, atherosclerosis, and cancer when energy intake is greater than consumption. Renal dialysis patients are given more than 30-35 calories per kilogram of body weight (30 thousand calories over 60 years old) to balance their caloric intake and consumption to maintain an ideal body weight. The ideal source of heat is sugar and fat. When the patient is extremely thin or obese, the total amount of heat should be increased or decreased.